The family is pleasantly surprised and puzzled when Beethoven suddenly becomes obedient. Turns out it's a prince and the pauper scenario, with the real Beethoven now living with a pompous rich family.

Inventor Goro Ibuki creates a humanoid robot named Jet Jaguar. It is soon seized by an undersea race of people called the Seatopians. Using Jet Jaguar as a guide, the Seatopians send Megalon as vengeance for the nuclear tests that have devastated their society.

Picking up directly where the previous film left off, the story follows Riley, one of the last people to come in contact with Samantha, as he scrambles to track down those responsible for the outbreak before the highly contagious disease not only consumes his body, but the world as we know it.

An ever evolving alien life-form arrives on a comet from the Dark Gaseous Nebula and proceeds to consume pollution. Spewing mists of sulfuric acid and corrosive sludge, neither humanity nor Godzilla may be able to defeat this toxic menace.

Young Polish nobleman Jakub is saved from imprisonment by a stranger. In return, the stranger wants to obtain a list of Jakub’s fellow conspirators. As he follows his mysterious savior across the country, Jakub is affected by the overall chaos and moral corruption; he goes insane and becomes a mass murderer.

Journalists Ichiro Sakai and Junko cover the wreckage of a typhoon when an enormous egg is found and claimed by greedy entrepreneurs. Mothra's fairies arrive and are aided by the journalists in a plea for its return. As their requests are denied, Godzilla arises near Nagoya and the people of Infant Island must decide if they are willing to answer Japan's own pleas for help.

Searching for his brother, Ryota stows away on a boat belonging to a criminal alongside two other teenagers. The group shipwrecks on Letchi island and discover the Infant Island natives have been enslaved by a terrorist organization controlling a crustacean monster. Finding a sleeping Godzilla, they decide to awaken him to defeat the terrorists and liberate the natives.

When Sara takes Beethoven to spend summer vacation with wacky Uncle Freddie in an old mining town, the mischievous canine "digs up" the missing clue to a legendary hidden fortune of Rita and Moe Selig. Now everybody wants to be the dog's best friend as his discovery unleashes a frenzy of treasure hunting among the community's cast of kooky creatures. With help from Uncle Freddie and Garrett (a friend or maybe more), Sara and Beethoven try to help uncover a secret that has been in the crazy little town for years.

A gang of thieves lure a man out of his home so that they can rob it and threaten his wife and children. The family barricade themselves in an interior room, but the criminals are well-equipped for breaking in. When the father finds out what is happening, he must race against time to get back home.

This psychedelic tour of life after death is seen entirely from the point of view of Oscar, a young American drug dealer and addict living in Tokyo with his prostitute sister, Linda. When Oscar is killed by police during a bust gone bad, his spirit journeys from the past -- where he sees his parents before their deaths -- to the present -- where he witnesses his own autopsy -- and then to the future, where he looks out for his sister from beyond the grave.